a while ago i put on a 4-2-1- 2 pc and it fit fine. a couple of weeks later i put on my skunk exhaust. then the mech asked me who installed the header. the o2 was rubbing up against the front axel. i was like what the hell?!!!??!?!??!?!?!?????!!!!?!?
it must have been doing it for a while cuz the upper part of the shell of the o2 is is almost rubbed to the wires. the mech. told me i should just try to bend it ( the o2)so it wouldn't touch but i dont feel like breaking it. any suggestions on how i can fix this prob? or should i just by a new header?

 

you can just take that o2 sensor off and weld the whole shut just move the o2 sensor back a little and drill a hole there and then just tack a tap and thread it. it would be cheaper then buying a new header, it will work just a it did before but just not rubbing.